Printer&#39;s chase.



No. 821,726; PATENTED MAY 29, 1906. s. MOLTRUP & W. L. HORNER.

PRINTBRS CHASE.

APPLICATION FILED MAYZS, 1905.

2 SHEETS-SHEET lv WITNESSES No. 821,726 PATENTED MAY 29,1906.

S. MOLTRUP & W. L. HORNBB...

PRINTERS CHASE.

APPLICATION FILED MAY26,1905.

3 ZSHEETS-SHEET 2. .5 6 9' I I 1 i i i I l i i i l i I 2 I i i a i 0 9 i i 0 i i M B -a i i as 5 i i:

wnmzsszs 9 mven'ron' 2 UNITED STATES PATENT OFFICE.

, STEPHEN MOLTRUP AND WILLIAM L. HORNER, OF BEAVER FALLS,

PENNSYLVANIA.

PRINTERS CHASE.

Specification of Letters Patent.

I'atented. May 29, 1906.

' fication, in which- Figure 1 is a top plan view of a printers chase constructed in accordance with our invention. Fig. 2 is a side elevation of the same. Fig. 3 is an enlarged plan view, partly broken away, of a corner portion. Fig. 4 is a cross-section of Fig. 8, and Fig. 5 is a partial side elevation of the corner portion.

Our invention relates to the class of printers chases, and is designed to provide a sim;

ple and efficient construction which will hold the type firmly in position and support it rigidly on all sides.

Heretofore in printers chases where slotted interfitting bars have been used these bars have been forced into clamping position by means engaging their end portions. Such construction is ineffective, since owing to the elasticity of the metal the intermediate portion of the bar will bend and prevent proper holding of the type.

Our invention overcomes this difficulty;

and it consists in providing a printers chase with longitudinal and transverse slidinginterfitting bars and employing quoins which back up those portions of the bars engaging the type. In this manner the binding pressure is applied directly in line with the type and there is no liability to bending or bowing of the interfitting bars. v

The invention also relates to an improved corner-portion construction of the chase, to guides for the clamping-bars, and other constructions hereinafter more fully described and claimed.

In the drawings we show a frame having longitudinal members with upper and lower plates 2 2 and end transverse members with similar plates 3 3. The upper and lower plates 2 2 and 3 8 are separated by the central spacers 4 and the spacin corner-blocks 5. These blocks are pinned through the members or strips of the side frame, and the corner-blocks are preferably square and provided with transverse grooves 6 and rightangled ribs 6 on both upper and lower faces.

The inner faces of the upper and lower frame members are grooved or recessed at the corners in alinement with the ribs and grooves of the block, and separate bars or stri s 7 are forced into the grooves, which exten partly within the frame members and partly within the spacing-blocks. The ribs of the block are cut through by the right-angled recesses of the block, as shown in Fig. 3. The parts are thenpinned together by small rivets or pins, as shown in Figs. 1 and 3, some of which preferably extend through the strips 7. A strong rigid construction 1s thus afforded, the bursting strain at the corners being resisted by the ribs and holding pins or strips. The inner faces of the pairs of members of each side are recessed to form guideways for the guide-head 8 for each slotted clamp -bar. These heads 8 are preferably T shape in cross-section and are of considerable length, so that they will not be liable to bind as they are slid back and forth to bring them to the desired point. We have shown these heads as slotted at their inner ends to receive the several strips or bars 9, which make up the transverse clamping-bars A A and the longitudinal clamping-bars B B. The members of the transverse bars and the longitudinal bars interfit with each other at their intersections, as shown in Fig. 4.

To hold the clamping-bars in adjusted position and force themagainst the type, we provide quoins which bear upon the central portions of the clamping-bars. We have shown the longitudinal bars B as held by quoins 10, which are shown as adjusted by the intermediate screw and nut device 11. We have shown the transverse bars as provided with furniture or blocks 12 between the bars and the quoins 13. The quoins may be of any desirable construction and may be tightened by wedges, screws, or any other suitable devices. The outer bearin blocks 14 of the quoins are arranged to 't against the upper and lower members of each side frame, preferably by being notched along their edges. The guide-heads 8 for the clamping-bars are also cut back slightly from the inner edges, so as to allow them to slide past the 31101118.

The a vantages of our invention result from combining the interfitting clampingbars with quoins which bear upon the intermediate clamping portions of these bars,

We thereby obtain an efficient and secure clamping of the type in the space between the four bars or a portion of such space. The clamping pressure being applied opposite to the type there is no danger of bending or bowing the clamping-bars. The structure is simple, may be cheaply made, and is found in practice to be highly efficient. The corner construction is simple and strong.

Many variations may be made in the form and arrangement of the frame, the interlaced.

clampin -bars, the quoins, &c., without departing om our invention.

Weclaim '1. A printers chase having a frame made up of separated members, with guideways between them, interfitting slotted longitudinal and transverse clamping-bars, and guideheads adapted to slide in said ways, said heads having .elongated sliding portions and shank portions slotted to receive the end portions of said bars, together with quoins arranged to-hold the bars in clamping positions; substantially as described.

'2. A printers chase having a frame with upper and lower bars, said bars abutting against each other at the corner and having a spacing-block with strips forced into mating recesses in the corner-block and ends of the corner members; substantially as described.

'3. A printers chase having a frame with upper and lower bars, said bars abutting against each other at thecorner and having a I spacing-block with strips forced into mating recesses in the corner-block and ends of the four corner members, and transverse rivets or pins extending through the spacing-block and four members substantially as described.

4. A printers chase having a frame with upper and lower plates beveled at the corners of the frame, a spacing-block between the plates at the corner, said block having ribs fitting within recesses in theplates and removable strips or bars fitting in grooves in the spacing-block and frame members; substantially as described.

5. A printers chase having a frame with upper and lower plates or bars beveled and fitting together at the corner, a spacing-block between the four plates at the corner, said block having ribs fitting within grooves in the upper and lower plates, the block and plates havin cross-grooves, removable bars fitting in sai grooves, and pins arranged to hold the bars and block together; substantially as described.

In testimony whereof we have hereunto set our hands.

STEPHEN MOLTRUP. WILLIAM L. HORNER. Witnesses:

JAMES PIPER, T. G. MOPHERSON. 

